Define the game concept
Choose the genre, platform, and target audience
Write a game design document
Plan the scope, timeline, and budget
Select a game engine and development tools
Build a prototype
Create core gameplay mechanics
Design the game world, levels, and progression
Develop art, animation, and sound assets
Implement user interface and controls
Add menus, settings, and save/load systems
Test for bugs, balance, and performance
Iterate based on feedback
Optimize for the target platform
Prepare marketing materials
Release the game
Patch and support the game after launch